Patents by Inventor Frank M. Williams

Frank M. Williams has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4667351
    Abstract: A spray flushing attachment for vehicle holding tanks, installed during initial manufacture or subsequently installed, is used to effectively and thoroughly clean out a vehicle holding tank, during the emptying of the holding tank. It is positioned in part through a hole in a holding tank end wall and secured from the outside, at a location opposite to the other end wall, in which a standard holding tank drain has been factory installed. When cleaning water under pressure is supplied through a hose to standard PVC pipe fittings attached to the spray flushing attachment, its interior horizontally diverging spray nozzle pointed toward the drain creates a wide spray across the bottom of this vehicle holding tank, which effectively cleans out the tank so no residue remains.
    Type: Grant
    Filed: April 23, 1985
    Date of Patent: May 26, 1987
    Inventor: Frank M. Williams
  • Patent number: 4521023
    Abstract: A golf training device is disclosed for teaching body movements during a golf swing designed to substantially maintain fixed the intersection of the user's torso axis with the user's body axis to thereby improve the user's swing. Relatively free body movement is permitted through use of the device, with the exception that the head of the user is constrained to rotate around the user's torso axis and to rotate about the user's body axis. Certain limited movement of the head along the body axis is permitted. Both the torso and body axes are established by the initial stance of the user, with the device serving to maintain the intersection of those two axes relatively constant throughout the golf swing. The device comprises a rigid upright carried on a base with a rigid arm extending from the upright and adjustably mounted thereto.
    Type: Grant
    Filed: November 25, 1983
    Date of Patent: June 4, 1985
    Inventor: Frank M. Williams
  • Patent number: D252041
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: June 5, 1979
    Assignee: Energy Conserving Equipment, Inc.
    Inventors: Robert L. Williams, Frank M. Williams, J. Andrew Williams